scholarly journals Establishing stable sinus rhythm in an endurance athlete with paroxysmal supraventricular tachycardia improves haemodynamical performance during exercise testing

2020 ◽  
Vol 13 (9) ◽  
pp. e238674
Author(s):  
Paul Zimmermann ◽  
Christoph Lutter
2018 ◽  
Vol 2018 ◽  
pp. 1-3
Author(s):  
Steven Hoon Chin Lim ◽  
Shieh Mei Lai ◽  
Kelvin Cheok Keng Wong

The first-line recommended treatment for stable paroxysmal supraventricular tachycardia (PSVT) is the use of vagal maneuvers. Often the Valsalva maneuver is conducted. We describe two patients who converted to sinus rhythm without complications, using a head down deep breathing (HDDB) technique.


Author(s):  
Yong-Yeon Jo ◽  
Joon-myoung Kwon ◽  
Ki-Hyun Jeon ◽  
Yong-Hyeon Cho ◽  
Jae-Hyun Shin ◽  
...  

Abstract Aims Paroxysmal supraventricular tachycardia (PSVT) is not detected owing to its paroxysmal nature, but it is associated with the risk of cardiovascular disease and worsens the patient quality of life. A deep learning model (DLM) was developed and validated to identify patients with PSVT during normal sinus rhythm in this multicenter retrospective study. Methods and Results This study included 12,955 patients with normal sinus rhythm, confirmed by a cardiologist. A DLM was developed using 31,147 ECGs of 9,069 patients from one hospital. We conducted an accuracy test with 13,753 ECGs of 3,886 patients from another hospital. The DLM was developed based on residual neural network. Digitally stored ECG were used as predictor variables and the outcome of the study was ability of the DLM to identify patients with PSVT using an ECG during sinus rhythm. We employed a sensitivity map method to identify an ECG region that had a significant effect on developing PSVT. During accuracy test, the area under the receiver operating characteristic curve of an DLM using a 12-lead ECG for identifying PSVT patients during sinus rhythm was 0.966 (0.948–0.984). The, accuracy, sensitivity, specificity, positive predictive value, and negative predictive value of DLM were 0.970, 0.868, 0.972, 0.255, and 0.998, respectively. The DLM showed delta wave and QT interval were important to identify the PSVT. Conclusion The proposed DLM demonstrated a high performance in identifying PSVT during normal sinus rhythm. Thus, it can be used as a rapid, inexpensive, point-of-care means of identifying PSVT in patients.


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